Retired academics over in Tahiti remembered to some extent (7)
I believe the answer is:
emeriti
'retired academics' is the definition.
(I've seen this before)
'over in tahiti remembered to some extent' is the wordplay.
'over' says the letters should be written in reverse.
'to some extent' says the answer is hidden in the clue.
'itireme' can be found hidden inside 'in tahiti remembered'.
'itireme' reversed gives 'EMERITI'.
(Other definitions for emeriti that I've seen before include "Retired title-holders" , "old lecturers" , "Former professors" , "(Of, say, professors) retired, but retaining title" , "Such as retired professors who retain title" .)